Data Storage Converter
A download in MB, a drive in TB, a file in bytes — pick the unit you're staring at and this lays out the rest in one look.
How it works
The byte is the base unit, and each step up multiplies by 1,024 — the binary jump computers actually use. Type a size, pick its unit, and the grid fills with every other size right away.
The 1,024 factor is why a drive sold as 1 TB shows up as roughly 931 GB in your operating system. Manufacturers count in decimal (1,000-based) while Windows counts in binary, and that gap is entirely real.
Bits come up mostly with network speeds. There are 8 bits in a byte, so a 100 megabit connection tops out near 12.5 megabytes per second. That factor of 8 is the single most common data mix-up.
Frequently asked questions
How many megabytes are in a gigabyte?
Using binary units, a gigabyte is 1,024 megabytes. Storage makers sometimes advertise 1,000 instead, which is where the mismatch between the box and your file manager comes from.
Why does my 1 TB drive show less space?
The drive maker counts 1 TB as a trillion bytes, but your OS divides by 1,024 at each step, landing around 931 GB. No storage is missing — it's just two different counting systems.
What's the difference between a bit and a byte?
A byte is 8 bits. Storage is usually quoted in bytes, while internet speeds are quoted in bits, so a 400 Mbps plan delivers about 50 MB per second, not 400.